Extensible bed



N. SINCLAIR.

EXTENSIBLE BED.

APPLICATION FILED NOV. 1. 1920.

1,380,502, Patented June 7, 1921.

2 SHEETS-SHEET l- N. SINCLAIR. EXTENSIBLEBED. r u cmqn HLE Noy. 1.1920.

F 2. 9 NI. 7 H w 4 N5 u Jm m .9 N as 2 mar. SINCLAIR,

0F OAKLAND, CALIFORNIA, ASSIG-NOR TO THE RIP VAN WINKLE WALL em)COMPANY, or OAKLAND, CALIFORNIA.

EXTENSIBLE BED.

Specification of Letters Patent.

Patented June *7, 1921.

Application filed. November 1, 1920. Serial No. 421,015.

To all whom it may concern.

Be it known that I, NEIL SrNoLAimfa citizen of the United States,residing at Oakland, in the county of Alameda and State of California,have invented new and useful Improvements in Extensible Beds,

of which the following is a specification.

This invention relates to improvements in that classof extensible orwall beds which are pivoted or hinged at or adjacent to ;a floor, wall,or door carried support and which swing from a vertical to a horizontalposition, or in a reverse direction so as to be disposed in positions ofuse and non-use.

The invention has particular reference to certain improvements in hingedor pivotal bed mountings and novel means forbalancing-the weight of abed so as to provlde for asaf e and easy swing thereof into and outofposition of use.

" An object of the lnvention is to provide a simple and inexpensivemounting by means of which bed spring or mattress supporting frames ofvarious kinds and sizes may be readily and easily mounted so as to beswung into horizontal and upright position, without the necessity ofemployment of skilled labor or special tools.

Another of the objects of the invention is to provide.counter-balancingmeans of the character described, which means principally embodiesretractile springs so arranged relative to the mountings, bed frame, 1and other elements of the counterbalancing paratively short stretchingof said springs,

means that maximum resisting or counterbalancing action 1s provlded witha comwhereby the life and efiectiveness' of the springs will beincreased.

A further object of the invention is to provide means of the characterdescribed which will be compact, consist of few parts,

and for. these reasons facilitate a rigid and secure mounting of thebed.

The lnvention possesses other advantages and features some of which,with the foregoing will be set forth at length in the followingdescription where I shall outline in full that form of the invention,which I have selected for illustration in the drawings accompanying andforming a part of c the present specification. In said drawings I haveshown one form of the construction of my invention, but it is to beunderstood that I do not limit myself to such form since the inventionas expressed in the. claims may be embodied in a plurality of forms.

I Referring to the drawings:

Figure 1 is a fragmentary perspective view of a bed constructed inaccordance with ing as they will appear when in upright position.

Fig. 5 is a top plan view of the clamp for securing the bed framemembers to the mounting.

' Fig. 6 is a longitudinal sectional view of said clamp taken on theline 6-6 of Fig. 5. Fig. 7 is an end elevation of the clamp;

In the embodiment of my invention illustrated in the accompanyingdrawing, there is provided the usual head 1' for the bed, which head issecured as at 2 to a mounting. or bracket 3, to which latter the bedframe or mattress supporting frame a, carrying the springs 5, is pivotedor hinged. In this form of'the invention, I have shown the mounting 3 asconsisting of spaced upright standards 6 provided at their lower endswith rearwardly extending. portions 7 and form of mounting, the head 1is adapted to lie against thewall, not shown. In the case of attachmentof the bed to a door, the mounting 3 will be fastened to the doorinstead of the floor, after a well known manner, which it is notbelieved'necessary to illustrate.

In the form of mattress or bed frame shown in'the drawings, the sidebars 12 are of tubular form and engage in elongated semi-circularreception members 13. Apertured ears 14 depend from the central portionsof the members 13 and extend between the standards 6 with the aperturestherein registering with similar apertures in said standards. Bolts orother members 15 serve as pivot pins and ar inserted through saidstandards and ears so as to pivotally connect the reception members 13with the upper ends of the standards. Cooperating with the members 13 aradjustable arcuate clamp members 16, the free ends of which are inwardlyturned as at 17 and adapted to' engage under lateral flanges 18 formedon opposite sides of the members 13. A jaw member 19 is adjustablycarried by each member 16 and is caused to be moved into and out ofclamping position on the side bars 12 by screws 20. It will thus be seenthat the bed frame 4 may .be quickly and securely clamped upon thepivotal mounting therefor and as quickly and easily removed whendesired.

The means for counter-balancing the bed frame comprises a plurality ofretractile helical springs 21, there preferably being three of suchsprings, two located on opposite sides of the standards 6 of eachmounting and one between said standards. The upper ends of the outersprings 21 are secured as at 22 to lateral extensions 23 upon the rearor inner ends of the receptionmembers 13. These springs are thereforeconnected with the bed frame at a point rearwardly of the bed fram pivotpoint, but close to said pivot point. The upper ends of the innersprings are hooked over the pivot pins 15 as at 24:. The lower ends ofthe outer springs are secured to vertically slidable members 25 mountedin slots 26 formed in the standards 6 adj acent to their lower ends. Theslots 26 and members 25 are in line with the pivot pins 15. The lowerends of the inner springs are likewise secured to the pins 25. Toprovide for the retracting of the springs downwardly from their lowerends, that is, a pulling of the springs from the lower ends as well asfrom the upper ends when the bed is moved from vertical to horizontalextended position, I employ preferably angular levers 27 the lower endsof which are secured to the pins 25, whereas the upper ends are pivotedas at 28 to depending ears 29 formed on the forward ends of thereception members 13. These levers are connected with the members 13forwardly of the pivot for the bed frame and effect action of the leversfrom these points downwardly so as to push the pins 25 downwardly'andretract the springs when the bed is moved from vertical to horizontalposition.

When the bed is moved from vertical position shown in Fig. 3 tohorizontal position shown in Fig. 2, the springs 21 are stretched inboth directions from the center and short distance in order to providethe requisite tension to effect the counter-balancing action. As amatter of fact, springs stretched in this manner provide a greatercounter-balancing action with less stretching'movement than thosesprings which are fastened at one end and stretched in one directiononly. By reason of the short stretching action, the life of the springsis increased, and the possibility of breakage or derangement of thesprings is avoided. By having two of the springs for each mountingpulled from points on opposlte sides of the pivot of the bed frame, itis possible to arrange the springs and mount-i ings in a compact, simplemanner whereby great strength and facility of assemblage anddisassemblage are provided.

Furthermore, by the application of the stretching force from points onopposite sides of the pivot point of the bed frame, the moving of thebed into and out of position for use is made comparatively easy,inasmuch as a maximum leverage or stretching action is provided by thisarrangement.

To assist in the counter-balancing of the bed frame, I may provide acompression spring 30 for each mounting, arranged between the standards6 in av slotted casin 31 supported by said standards. The sprlngs 30 areadapted to be engaged by the sliding members 25 upon downward movementof said members whereby said springs will compress. The slots in saidcasing 31 receive the sliding members 25.

Another of the important features of this invention is the provision ofthe elongated reception member and clamping means therefor both of whichprovide for the mounting of any kind of .spring or mattress supportingframe upon'the stationary mountings so that the said frame may beoperated as a wall or extensible bed. It is only necessary with'thismeans to fit the side bars of the bed frame in the reception" member andclamp the side bars to said member, the member itself being arranged sothat it may be easily pivoted to a mounting or support.

1 claim i 1. An extensible bed embodying in its construction a mounting,a mattress supporting frame pivoted upon the mounting, retractilesprings secured at certain ends to the frame rearwardly of the pivot"point thereof, means slidable upon said mounting with which the otherends of said springs are connected and a lever connected with said frameforwardly of the pivot point and at one end and at its other end securedto said means.

2. An extensible bed embodying in its construction mountings, a mattresssupporting frame pivoted upon said mountings, retractile springsconnected at certain ends to said frame, members movable upon themountings and to which the other ends of the springs are secured, andlevers connected at their lower ends to said. members and at their upperends to said frame.

3. An extensible bed embodying in its construction mountings, a mattresssupport.- ing frame pivoted upon said mountings, retractile springsconnected at certain ends to said frame at a point to one side of thepivot, members movable upon the mountings and to which the other ends ofthe springs are secured, levers connected at their lower ends to saidmembers and at their upper ends to said frame, and other retractilesprings secured at their upper ends to the pivots for the mattress frameand at their lower ends to said movable members.

4. In a bed of the character described, embodying in its constructionmountings, reception members pivoted to said mountings and adapted toreceive the side members of a bed frame, means for clamping said sidemembers to said reception members, members slidable upon said mountings,springs attached at certain ends to said last-named members and at otherends to the reception members at points to one side of the pivot androds connected with said reception mem bers and said slidable members.

NEIL SINCLAIR.

